100652021 has 2 divisors, whose sum is σ = 100652022. Its totient is φ = 100652020.

The previous prime is 100652003. The next prime is 100652029. The reversal of 100652021 is 120256001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83923921 + 16728100 = 9161^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 100652021 - 2¹⁴ = 100635637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100652029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50326010 + 50326011.

It is an arithmetic number, because the mean of its divisors is an integer number (50326011).

Almost surely, 2^100652021 is an apocalyptic number.

It is an amenable number.

100652021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100652021 is an equidigital number, since it uses as much as digits as its factorization.

100652021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100652021 is about 10032.5480811208. The cubic root of 100652021 is about 465.1655031943.

The spelling of 100652021 in words is "one hundred million, six hundred fifty-two thousand, twenty-one".